Process for the production of mesophase pitch

Details Process for the production of mesophase pitch Process for the production of mesophase pitch

C - Chemistry, Metallurgy

10

C

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C10C 3/02 (2006.01) C10C 3/04 (2006.01) C10C 3/10 (2006.01) D01F 9/145 (2006.01)

Patent

CA 1334010

An improved process for producing an anisotropic pitch product suitable for carbon fiber manufacture. A carbonaceous feedstock substantially free of mesophase pitch is heated at elevated temperature while passing an oxidatively reactive sparging gas such as air through the feedstock. The oxidatively treated feedstock, which remains substantially free of mesophase pitch, is then heated at a higher temperature in the presence of a non-oxidative sparging gas to produce an anisotropic pitch having from 50 to 100% by volume mesophase which is suitable for producing good quality carbon fibers.

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